Home / 255,157.40-352,120.38-140,449.28

Finding the Fourth Proportional to 255,157.40, 352,120.38 and 140,449.28

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Solution

The fourth proportional to 255,157.40, 352,120.38 and 140,449.28 is: 193,821.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,157.40 : 352,120.38 = 140,449.28 : x
  2. Step 2: Convert to fraction form
    255,157.40/352,120.38 = 140,449.28/x
  3. Step 3: Cross multiply
    255,157.40x = 352,120.38 × 140,449.28
  4. Step 4: Simplify right side
    255,157.40x = 49,455,053,844.33
  5. Step 5: Solve for x
    x = 49,455,053,844.33/255,157.40
  6. Step 6: Final answer
    x = 193,821.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.